/Engine/Source/Developer/CollectionManager/Public/ICollectionManager.h
bool RemoveFromCollection ( [FName](API\Runtime\Core\UObject\FName) CollectionName, [ECollectionShareType::Type](API\Developer\CollectionManager\ECollectionShareType\Type) ShareType, TConstArrayView< [FSoftObjectPath](API\Runtime\CoreUObject\UObject\FSoftObjectPath) > ObjectPaths, int32 * OutNumRemoved )